Ap chem - Study guides, Class notes & Summaries

Which hydrocarbon is 84.1% carbon by mass? (A) CH4 (B) C2H6 (C) C4H10 (D) C8H18 - ANSWER(D) C8H18 Lithium hydrogen carbonate, LiHCO3, decomposes when heated to form Li2O, CO2, and H2O. How many moles of H2O are formed when 0.50 mol LiHCO3 decomposes? (A) 0.25 mol (B) 0.50 mol (C) 0.75 mol (D) 1.0 mol - ANSWER(A) 0.25 mol A vessel contains 66 g CO2 and 16 g O2 at a pressure of 10.0 atm. What is the partial pressure of CO2? (A) 5.0 atm (B) 6.0 atm (C) 7.5 atm (D) 8.0 atm - ANSWER First...

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AP CHEM CHAPTER TEST BANK EXAM 2024

Which hydrocarbon is 84.1% carbon by mass? (A) CH4 (B) C2H6 (C) C4H10 (D) C8H18 - ANSWER(D) C8H18 Lithium hydrogen carbonate, LiHCO3, decomposes when heated to form Li2O, CO2, and H2O. How many moles of H2O are formed when 0.50 mol LiHCO3 decomposes? (A) 0.25 mol (B) 0.50 mol (C) 0.75 mol (D) 1.0 mol - ANSWER(A) 0.25 mol A vessel contains 66 g CO2 and 16 g O2 at a pressure of 10.0 atm. What is the partial pressure of CO2? (A) 5.0 atm (B) 6.0 atm (C) 7.5 atm (D) 8.0 atm - ANSWER First...

AP Chemistry TSNF Quiz with Complete Solutions Convert 1 liter to milliliters. What is the equivalent volume? 1000 ml 500 ml 100 ml 10000 ml Convert 1 kilogram to grams. What is the equivalent mass? 1000 g 100 g 500 g 10000 g Convert 1 meter to nanometers. What is the equivalent length? 10^9 nm 10^6 nm 10^3 nm 2 10^12 nm What can be broken down into its elements through a chemical change? Compounds Mixtures Solutions Elements When measuring the volume...

AP CHEMISTRY UNIT 6 ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct

atomic number - Answer The same as the number of protons in the nucleus of an element; it is also the same as the number of electrons surrounding the nucleus of an element when it is neutrally charged. mass number - Answer The sum of an atom's neutrons and protons isotopes - Answer Atoms of an element with different numbers of neutrons Avogadro's number - Answer 6.022×10²³ particles per one mole Moles - Answer grams/molar mass Standard Temperature and Pressure (STP)...

AP Chemistry Midterm Exam (2024 / 2025) Updated Questions and Verified Answers, 100% Guarantee Pass

AP CHEMISTRY EXAM QUESTIONS 1 ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct

Which one of the following statements concerning matter is correct? a) a gas has a fixed volume but not a rigid shape b) a liquid has a fixed volume and a rigid shape c) a liquid takes on both the volume and the shape of its container d) a solid has a fixed volume and a rigid shape e) both b and d are correct CORRECT ANSWER d All of the following statements are true EXCEPT a) of the 113 known elements, 91 occur naturally b) an element cannot be broken down into two or more pure substan...